Method and apparatus for rolling rails

Details Method and apparatus for rolling rails Method and apparatus for rolling rails

1983-06-27

1985-03-12

Gilden, Leon

Metal deforming

By use of roller or roller-like tool-element

Plural passes spaced along axis of one roller of tool-couple

72225, 72234, 72366, B21B 108

Patent

active

045036993

ABSTRACT:
The rail is rolled by the steps of breakdown rolling, reforming rolling, first and second universal rolling, head-wheel rolling and base-wheel rolling in that order. The reforming rolling is performed using a pair of horizontal rolls provided with a reforming pass and a head-wheel pass and a vertical roll adapted to reduce the base of the rail, with the paired horizontal rolls, together with said vertical roll, shifted and set in such a position where the reforming pass matches the pass line of the first universal rolling pass. The head-wheel rolling is performed using the same paired horizontal rolls and a vertical roll adapted to reduce the head of the rail, with the paired horizontal rolls, together with said vertical roll, shifted and set in such a position where the head-wheel pass matches the pass line of the second universal rolling pass. The rail rolling apparatus comprises a breakdown stand, a sizing head-wheel stand having a pair of horizontal rolls provided with a reforming pass and a head-wheel pass, a vertical roll adapted to reduce the base of the rail, a vertical roll adapted to reduce the head of the rail, and mechanism for shifting the rolls, a universal stand, and a base-wheel rolling stand.

REFERENCES:
patent: 3657912 (1972-04-01), Ishibashi et al.
patent: 4393680 (1983-07-01), Kovacs
patent: 4400962 (1983-08-01), Michaux

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